Kiln



June 29 ,1926. 1,590,935 H. FREEBOROL'GH A KILN Filed March v. 1922 .2 sheets-sheet 1 ff/9M WITNESS:

June 29 1926. 1,590,935

H. FREEBOROUGH I KILN Filed March '71.v v192:2 A2' Shee'cs-Shet` 2 BY my WITNESS:

ATTORNEY Patented June 29, 19264.

uNlrsns'rArs HENRY FREEBOROUGH, 0F vron'r sco'r'r, KANSAS.

IKILN'.

i Applicationled March 7, 1922. Serial No. 541,696.y

This invention comprehends a new and improved construction of kiln, designed to minimize the consumption of fuel, as well as to facilitate firing the same, the invention residing in the construction, combination, and arrangement of parts as claimed.

In the drawings forming part of this application, like numerals ofv reference indicate similar parts in the several views, and wherein Figure 1-is a side elevation, partly in section. l

Figure 2-is an end elevation.

Figure 3-is a central transverse sectional view.

Figure 4--is a vertical sectional view taken through the fire boxes and combustion chambers.

Figure 5-is a plan view of the floor construction.

Referring to the drawings in detail, A and B indicate communicating kilns, each of which is identical in construction, and designed to promote the circulation of heat over the entire floor area of the kiln. Each kiln has a door 10 at one end thereof which permits ready access to the interior of the kiln. Arranged adjacent each side of each kiln is a longitudinally disposed fire box 11, the wall 13 of which is arranged in close proximity to the adjacent side of the kiln. The combustion chambers are indicated at 12 and arranged at the opposite sides of the structure. Access may be had to the fire box 11 at the outer side of the structure by opening the doors 12 shown in Figure 2, so that the products of combustion will extend along the entire length of the kiln. Arranged at each end of the kiln and transversely thereof is a channel shaped member 14, while disposed between these members and equidistantly spaced therefrom is-a similar member 15, the latter as well as the members 14 being in communication with the fiues or passages 16 beneath the floor as shown in Figure l. Access to the channels may be had by opening the door 21. At the left hand side of Figure 3 it will be noted that the kiln A is provided with a passage 16 which opens into the adjacent fire box, while at the right hand side of this figure, a similar passage 17 is shown which is adapted to open into a chimney 22. The passage 16 justV described is only used when the kiln A is arranged alongside of another kilnv not illustrated, so that if the kiln A constituted the outermost kiln of a plurality of kilns,

the passage 16 wouldV beV dispensed with. In addition to communicating with the iiues or passages 16, the channel like member 15 communicates with a tunnel 15 which opens to the atmosphere at one end of the structure through a-door opening, which is normally closed by a door 18. VThis tunnel is diagonally disposed with relation to the channel like member 15, as illustrated by dotted lines in` Figure l5. Each transverse member 14 communicates-with the adjacent iire box of the next kiln throughthe passage 17 as illustrated in Figure 3.

In practice, a lire is started in the fire box 11 of the kiln A by opening the doors 12 and igniting the fuel previously arranged in said fire box, whereupon the' heat is directed upwardly, and thence deflected downwardly by the top of the kiln through the opening in the floor. If itis desired to only use the kiln A, one or more of the doors 19 are opened to permit a block of suitable material to be placed in the kiln to cut off the communication between the transverse member 14 and the next adjacent kiln. The heat then passes from the flues or passages 16 into the heat to pass from one kiln to the other through these passages 17,'the work to be performed within the structure can be accomplished with a saving of time as com- On the pared to other kilns, and also with a reducv of the structure to permit of access to 'said fire boXes,'o1ie wall of keach box terminating in spaced relationrwith the top of the kiln, a'loor 'for each kiln having openings therein, channel like membersl extending across each kiln adjacent the ends thereQ,

vand communicating with the space beneath said floor, passages establishing yeomnnmication between the said channel like 'members of one/kiln and the ire'boxof the ad ber arranged between the yfirst mentioned members and equi-dstantly spaced there- 'from7 and also communicating' with the space beneathsad oor, tunnel establish-- ing communication'fbetween the last mentioned member and the atmosphere, and a door closing the outer end of each tunnel ortliep-nrpo-se speciied.

In testimony whereof I aHiX my signature.

HENRY EBEEBQRQUGH. 

